Cycles ambient occlusion settings?

I cant seem to find the cycles settings for ambient occlusion.
Setting the distance value and samples.
I figure every other tweak is done in the composite…

Where can i find the samples and AO distance for the render?

There is no difference from 2.79b.

AO settings are under World tab.
AO samples are available under Render tab, only when Branched Path Tracing integrator is used.

The only modification made to Cycles Ambient Occlusion is about the node.
Ambient Occlusion Shader node was replaced by an Ambient Occlusion Input node.